Summary of Ubuntu FAQs

1. Dual system network connection problem

This Lyon blogger has already said it in detail ( link 1) ( link 2), here is a backup.

# 1.启动NetworkManager
sudo vim /etc/NetworkManager/NetworkManager.conf #修改managed=true
# 2.重启服务
sudo service network-manager restart
# 查看启用的网卡
ifconfig
# 查看所有网卡
ifconfig -a
# 3.如果nmcli命令查看网卡状态，发现网络没有被network-manager所管理（enp是宽带，wlp是无线），就备份和新建配置文件
sudo mv /usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf  /usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf_orig
sudo touch /usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf

2. Dual system file management issues

Description of the problem: When copying files to the mounted hard disk under the Ubuntu system, it displays "The target is read-only". Creating a file under this hard disk will also display "This disk is read-only".

Solution:

1. Temporary workaround

# 输入mount查看该磁盘是不是只读‘ro’
mount
# 用下面命令后看是否可以更改为读写‘rw’
sudo mount -o rw,remount /dev/sdb1
# 如果输入mount后显示该磁盘是ntfs格式，就需要用一下命令
sudo ntfsfix /dev/sdb2
# 如果显示ntfsfix不存在，就需要用一下命令安装
sudo apt-get install ntfs-3g
# 通常来说这时ntfsfix命令就可以用了，不行的话尝试如下命令（未验证）
sudo apt-get install ntfsfix

2. Permanent solution: turn off fast startup under windows.

Reference Link: Installing and Using NTFSfix (Installing Ntfs-3g) to Repair Windows Hard Drives on Linux